One or more terminals that are coupled to a packet-based network are installed with a first instance andor a second instance of a communication client application of a first user. The toolset consists of components which, when combined, provide an interactive on-line system where a developer is provided with access to low volume, high-quality, depersonalized, and targeted data with referential integrity and is suitable for most testing needs. The method further fabricates in a first portion of the panel structure at least one mortice opening having self-locking end portions. This knowledge facilitates a reduction in measurement, analysis and reporting costs both prior to and during production. The electric current flowing to the load is detected based on the current level determined by the plurality of comparators before shifting the reference voltage and the current level determined by the plurality of comparators after shifting the reference voltage.